A review on polyhydroxyalkanoates synthesis in activated sludge system : the effects of dissolved organic compounds by using anaerobic fermentation liquid from waste activated sludge
Polyhydroxyalkanoates (PHA) synthesis by activated sludge using volatile fatty acids (VFAs) in fermentation liquid of excess sludge as carbon source is a hotspot in the field of environmental biotechnology. However, there is no unified conclusion on the effects of non-VFAs, mainly dissolved organic matter (DOM), on PHA production. Thus, this critical review mainly introduces the main characteristics and common analysis methods of DOM in anaerobic fermentation liquid. The effects of DOM on PHA production are analyzed from the aspects of microbiology, metabolic regulation and sludge properties. The results of different studies showed that high concentration of DOM is bad for PHA production, but an appropriate amount of DOM is conducive to the stability of sludge properties, reducing the final PHA purification cost. Finally, suitable strategies were proposed to regulate the PHA synthesis by activated sludge with DOM for PHA production by anaerobic fermentation liquid.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:37 |
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| Enthalten in: |
Sheng wu gong cheng xue bao = Chinese journal of biotechnology - 37(2021), 1 vom: 25. Jan., Seite 149-162 |
| Sprache: |
Chinesisch |
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| Beteiligte Personen: |
Dong, Jinyun [VerfasserIn] |
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| Links: |
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| Themen: |
Activated sludge |
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| Anmerkungen: |
Date Completed 28.01.2021 Date Revised 28.01.2021 published: Print Citation Status MEDLINE |
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| doi: |
10.13345/j.cjb.200203 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM320636119 |
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| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Polyhydroxyalkanoates (PHA) synthesis by activated sludge using volatile fatty acids (VFAs) in fermentation liquid of excess sludge as carbon source is a hotspot in the field of environmental biotechnology. However, there is no unified conclusion on the effects of non-VFAs, mainly dissolved organic matter (DOM), on PHA production. Thus, this critical review mainly introduces the main characteristics and common analysis methods of DOM in anaerobic fermentation liquid. The effects of DOM on PHA production are analyzed from the aspects of microbiology, metabolic regulation and sludge properties. The results of different studies showed that high concentration of DOM is bad for PHA production, but an appropriate amount of DOM is conducive to the stability of sludge properties, reducing the final PHA purification cost. Finally, suitable strategies were proposed to regulate the PHA synthesis by activated sludge with DOM for PHA production by anaerobic fermentation liquid | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Review | |
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| 650 | 4 | |a anaerobic fermentation | |
| 650 | 4 | |a dissolved organic matter (DOM) | |
| 650 | 4 | |a metabolic pathway | |
| 650 | 4 | |a polyhydroxyalkanoates (PHA) | |
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| 700 | 1 | |a Zhang, Jialing |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Runze |e verfasserin |4 aut | |
| 700 | 1 | |a Weng, Jiayu |e verfasserin |4 aut | |
| 700 | 1 | |a Cao, Jiashun |e verfasserin |4 aut | |
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